I stopped by an independent Benz shop today called "SilverStar Service Center" in Annapolis, MD. They are a full-service shop that handles both Benz and German car sales and service. I have seen them driving by for a long time, and they always have a nice selection of 126s, 129s, 201s and 107s and the like in their sizable lot for sale. They are well versed in servicing 124s, 126s, 107s, 210s, 211s, 129s, and the like. They have been in business for more than 30 years in the Annapolis, MD area.
I spoke with one of the owners at length and they are a good operation and true Benz enthusiasts. If I lived in the area I would have no qualms about taking my cars to them if needed. They are open M-F and by appointment at other times.
Silver Star Service Center
24 Old South River Rd.
Edgewater, MD 21037